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Question for Facelift C63 Renntech EVM owners

Old Feb 19, 2021 | 11:32 AM
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2020 C63s Coupe
Question for Facelift C63 Renntech EVM owners

I had Renntech EVM installed on my FL C63s for about 6 month and I just want to see if this is normal behavior.
When my car's off, exhaust valve flaps randomly goes into cycling mode by closing and opening once.
I can hear that distinct exhaust valve flap mechanical noise coming from it.

Has any EVM owners noticed this?
I don't think it happens without EVM.
I guess it's trying to keep exhaust valve open, but not sure why it does that when car is not even running.
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Old Feb 19, 2021 | 12:09 PM
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This happens to me too on FL.
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Old Feb 19, 2021 | 12:29 PM
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It happens , and its like the electric parking break.. remember our cars stay alive for a bit, even when you turn it off.. so its just cycling thru things.
(I dont know the technical reason for it, or why) but I confirmed it with a couple if my cars) even my 2016 c63s with AWS switchpath does it..

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Old Feb 19, 2021 | 01:07 PM
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Originally Posted by FLC63s
It happens , and its like the electric parking break.. remember our cars stay alive for a bit, even when you turn it off.. so its just cycling thru things.
(I dont know the technical reason for it, or why) but I confirmed it with a couple if my cars) even my 2016 c63s with AWS switchpath does it..
agree it's the car cycling, my dashcam restarts at the same time as the EVM.
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